This cool, tart cocktail is kind of like a classic daiquiri with the added tangy, floral flavor of elderflower.

What to buy: For this drink you can use either elderflower syrup or elderflower liqueur. If you opt for syrup, look for it at specialty grocers or online. If you go with the liqueur, look for St-Germain, which can be found at high-end liquor stores and online.

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